It seems a shame to throw away a perfectly good Starbucks cup after just one use, which is why a young artist from Ohio converts them into stunning works of art. For the past year and a half, Carrah Aldridge has been collecting her used cups and covering them with colorful designs and patterns using pens and markers.

“I got my inspiration from an artist by the name of Kristina Webb who drew on a cup and then I decided to try it out myself,” the 20-year-old wrote on Bored Panda. “To say the least, it turned out to be one of my favorite things to do and now I have a little collection growing.”